Truck.



l. W. COX.

TRUCK.

APPLICATION FILED IIIAY Is. |915.

Patented Dec. 31, 1918.

vso

rimorso eframes estranei JOHN W. COX, 0F ERIE, PENNSYLVANIA, ASSIGNOR OF ONE-FOURTH TO GEORGE R.

METCALE AND ONE-FOURTH TO EDWARD E. NALKEl/t, BOTH 0F ERIE, PENNSYL-- VANIA..

TRUCK.

i ,esame Specification of Letters latent.

To all whom t may concern.'

Be it known that l. JOHN W. Cox, a subject of. the King of Great Britain, having declared my intention of becoming a citizen of the United States, residing at Erie, in the County of Erie and State of Pennsylvania, have invented new and useful Improvements in Trucks, of which the following is a specilication. v

IThis invention relates to trucks and consists in certain improvements in the construction thereof as will be hereinafter tally described and pointed out in the claims.

More particularly the invention is adapted for platform trucks ordinarily used in shop practice. These trucks have a very low platform and as ordinarily constructed are designed to have this platform moved to a position under the object to e moved and are ordinarily provided with means for lifting:` the container for the material 'to be. moved. It is very essential. theretore, to get the platform as low as possible. At the same time it is desirable to have the working parte as nearly protected possible because with such low clearance they are peculiarly subject to injury.

The invention is illustrated in the accompanying drawings as follows Figure l shows a. plan view ot' the truck, the truck platform being removed to better show the trame.

Fig. 2 a. section on the line 2-2 in Fig. l.

Fig. B an enlarged view of the 'fore and aft beam and immediate parts.

'The frame l is provided with the drive Wheels 3. The frame is formed with the sills 4f and these sills are connected near the front of the truck by cross beams 5 and 5a. The fore and aft beam (iis centrally located and extends from the cross beam 5 to the cross beam 5. A steering axle 7 is pivoted at 8 below the fore and aft beam 6 and is provided with sills 7, one each side of the fore and aft beam 6. Ordinarily these sills are quite close` together and the'fore and aft beam is formed to give sncient turning movement. A steering arm 9 extends lrearvvardly from the axle 7 and is connected by a link 10 with a lever' l1. The lever 11 is pivotally mounted above the cross beam 5 and on a pin l2. A link 13 connects the lever 11 with a lever lll: and the lever 14: is connected by a link 15 with a steering arm 1G on the steering;r post 17. A gear 18 on the steering post meshes a gear 19 secured to the steering handle 20. It will be readily observed that by operating the handle the movement is communicated through the intermediate mechanism to the axle so as to steer the truck. Ordinarily these trucks swing both sets ot wheels se that the wheels track so that the truck can be more readily moved in the runways of shops. To accomplish this the wheels 3 are carried by the knuckles 21 pivotally mount-- ed in the frame b v pins 2l". The lever lll is secured to one of these knuckles. An arm 22 extends from the same knuckle and is connected by'a link 23 with an arm 24 extending from the knuckle carrying the opposite wheel.

Heretofore the lever ll has been placed below th'e cross beam 5 and has' been subject to frequent injury by reason of the slight clearance of the truck. By placing this lever above the beam 5 this ditliculty is entirely obviated. The axle 7 being` below the 1tore and att beam and the fore and aft beam resting' on the cross beam. the steering arm 9 is below the level of the lever fili ll. A. post 2G is provided to make up this di'erence ,in level and the tore and aft beam of the link and post.

lll/hat l claim as new iszl. ln a truck, the combination of a swingq ing axle; wheels on the aille; a fore and aft beam between the wheels on which the axle is pivoted; cross beams supported by the fore and att beam; a steering arm extending from the axle; a lever mounted on the upper side of one of the cross beams; and a link. ronnecting the steering arm and lever.

2. ln a track, the combination of a swinging agde.; wheels (inthe-axle; Ia fore and aft beam between the Wheels on which the axle is pivoted'; cross beams supported by the 'fore and att beam; a steering arm extending from 'the axle below the fore and ait beam;

a lever mounted on the upper side of one l. 

